diff --git a/koha-tmpl/intranet-tmpl/prog/en/includes/calendar.inc b/koha-tmpl/intranet-tmpl/prog/en/includes/calendar.inc
index 6464b8a0f5..117dbd9960 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/includes/calendar.inc
+++ b/koha-tmpl/intranet-tmpl/prog/en/includes/calendar.inc
@@ -43,6 +43,8 @@
         nextArrow: '<i class="fa fa-fw fa-arrow-right"></i>',
         prevArrow: '<i class="fa fa-fw fa-arrow-left"></i>',
         time_24hr: flatpickr_timeformat,
+        defaultHour: 23,
+        defaultMinute: 59,
         locale: {
             "firstDayOfWeek": calendarFirstDayOfWeek
         },